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JPL Small-Body Database Browser
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108903 (2001 PR8)
Classification: Main-belt Asteroid          SPK-ID: 2108903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330018767723979 5.0266e-08  
a 3.140584938767736 2.615e-08 au
q 2.7228812477485 1.6069e-07 au
i 12.39126728994857 4.7631e-06 deg
node 104.6571858310617 3.0478e-05 deg
peri 322.3556204654475 3.8016e-05 deg
M 70.53622534434935 2.2226e-05 deg
tp 2458602.187480784539
(2019-Apr-28.68748078)
0.00012509 TDB
period 2032.891698096133
5.57
2.539e-05
6.951e-08
d
yr
n .1770876433492012 2.2118e-09 deg/d
Q 3.558288629786972 2.9628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      658  
   data-arc span      10262 days (28.10 yr)  
   first obs. used      1991-12-02  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56591  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:44:40  

Additional Information
 Earth MOID = 1.74928 au 
 Jupiter MOID = 1.73455 au 
 T_jup = 3.161 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO493614  

108903 (2001 PR8)          Discovered 2001-Aug-11 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 PR8 = 1991 XY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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